Anna of Trebizond, Queen of Georgia

His first wife Helena had died the previous year of bubonic plague, leaving behind two sons.

[6] In November 1386, Tbilisi was besieged and captured by the invading forces of Mongol warlord Tamerlane; and she, along with her husband and son were taken prisoner.

[7] As a means of securing their release, King Bagrat agreed to become a Muslim, and Tamerlane sent them back to Georgia with 20,000 Mongol troops.

However, Prince George, her husband's son from his first marriage, was able to completely destroy the Mongol army and released the king and queen from captivity.

In the end they didn't convert to Islam, although further battles were fought with Tamerlane before he allowed the kingdom of Georgia to remain Christian.